The fabrication and arsenic removal performance of cellulose nanocrystal-containing absorbents based on the "bridge joint" effect of iron ions.

Arsenic removal Bridge joint Cellulose nanocrystal Iron ions

Journal

Carbohydrate polymers
ISSN: 1879-1344
Titre abrégé: Carbohydr Polym
Pays: England
ID NLM: 8307156

Informations de publication

Date de publication:
01 Jun 2020
Historique:
received: 05 10 2019
revised: 09 02 2020
accepted: 05 03 2020
entrez: 4 4 2020
pubmed: 4 4 2020
medline: 4 4 2020
Statut: ppublish

Résumé

By using the "bridge joint" effect of iron ions, cellulose nanocrystal-containing high-performance adsorbents were synthesized via coprecipitation method, which enhanced the cross-linking action of cellulose nanocrystal and polyethyleneimine. The morphology, specific surface area, surface chemistry and chemical valence of the adsorbents were characterized by SEM, FTIR, BET and XPS. According to the results, the iron ions successfully connect the two dispersed polymers together, inducing a large number of O-Fe-O bonds and, providing more adsorption active sites for the removal of seriously polluted and high-toxicity As(III)/As(V). Furthermore, the arsenic removal performance of the adsorbents was studied, and the adsorption mechanism was revealed according to the spectral characteristics of the chemical components. Of note, the synthesized iron-containing adsorbents are suitable for a wide pH range, which may offer a new application for nanocellulose in the treatment of arsenic pollution.

Identifiants

DOI: 10.1016/j.carbpol.2020.116129 PMID: 32241454
pubmed: 32241454
pii: S0144-8617(20)30303-9
doi: 10.1016/j.carbpol.2020.116129
pii:
doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

116129

Informations de copyright

Copyright © 2020 Elsevier Ltd. All rights reserved.

Déclaration de conflit d'intérêts

Declaration of Competing Interest None.

Auteurs

Chunyan Xi (C)

School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China. Electronic address: xcy929305@163.com.

Runkai Wang (R)

School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China. Electronic address: wrk007@163.com.

Pinhua Rao (P)

School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China. Electronic address: raopinhua@sues.edu.cn.

Wenqi Zhang (W)

School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China. Electronic address: zhangwenqi@sues.edu.cn.

Lili Yan (L)

School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China. Electronic address: lily.502@163.com.

Guanghui Li (G)

School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China; Zhejiang CathayRIPE Environmental Engineering Co., Ltd., Zhejiang 313000, China. Electronic address: gli@cathayripe.com.

Fei Chai (F)

School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China. Electronic address: cfpbj0501@163.com.

Yiyun Cai (Y)

School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China. Electronic address: caiyiyun0401@163.com.

Tingting Luo (T)

School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China. Electronic address: luot852@163.com.

Xiaoya Zhou (X)

School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China. Electronic address: zxy943289841@163.com.

Classifications MeSH